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  1. #1
    New Member
    Join Date
    Feb 2013
    Posts
    4
    Location
    Canton Georgia
    Tractor
    Kabota L3800

    Default grinding starter

    Hello, I have an L3800 HST that is a little over a year old,,,it has around 110 hours. I have had issues with the starter not engaging to the point I took it back to my dealer. They replaced the starter and did a complimentary fluid-filter change. I went down to the barn this morning and it took five tries to get it to start! I did use the glow plug,,although it's not that cool here in Georgia,,,,but I don't feel it makes a difference. The tractor is kept in an enclosed converted chicken house,,,,never outside. My dealer were helpful but offered no reason for this,,,,is this something anyone else has experienced? It's a great tractor,,,,but I would like it to start without all the drama of grinding metal,,,,,Eddie

  2. #2
    Veteran Member
    Join Date
    Jul 2009
    Posts
    1,743
    Location
    IL
    Tractor
    B2710

    Default Re: grinding starter

    Are you saying that not only does it not start, but the starter still grinds like it did before the dealer replaced the starter? Does the engine actually turn over, but still won't start? Or does the engine not even turn over?
    Kubota B2710, New Holland CM274 front mower, Toro Zmaster ZTR, Ford 908 bush hog, New Idea manure spreader, Swisher trail mower

  3. #3
    New Member
    Join Date
    Feb 2013
    Posts
    4
    Location
    Canton Georgia
    Tractor
    Kabota L3800

    Default Re: grinding starter

    Quote Originally Posted by BeezFun View Post
    Are you saying that not only does it not start, but the starter still grinds like it did before the dealer replaced the starter? Does the engine actually turn over, but still won't start? Or does the engine not even turn over?
    Yes, the starter grinds without starting the engine. I don't hold the key any longer than a few seconds in the start position when I hear the failure to turn the engine over,,,,,just that horrible grinding sound of the starter,,,,,,,it took five tries this morning before it "engaged" and started the tractor. My dealer said to use it till it dies,,,,,,the way things go,,it will die when I need it most!

  4. #4
    Gold Member
    Join Date
    Jan 2012
    Posts
    399
    Location
    Great North of Michigan
    Tractor
    Kubota L2500, Oliver Super55

    Default Re: grinding starter

    Quote Originally Posted by luckyeddie View Post
    Yes, the starter grinds without starting the engine. I don't hold the key any longer than a few seconds in the start position when I hear the failure to turn the engine over,,,,,just that horrible grinding sound of the starter,,,,,,,it took five tries this morning before it "engaged" and started the tractor. My dealer said to use it till it dies,,,,,,the way things go,,it will die when I need it most!
    If your dealer said that I might consider looking at a new svc dealer or at least get a second opinion. Grinding starters usually mean 1. Worn gears on starter, 2. Worn gears on flywheel or 3. There might be some clearance issues with the starter and the flywheel usually involving adding or removing some shims.

    If they just replaced the starter and it is still doing it Im guessing you either have worn/missing teeth on the flywheel or the starter isn't engaging deep enough on the flywheel and is slipping/grinding because of some possible shims left from the previous starter.

    I don't know if Kubotas have inspection plates for the flywheel but if they do it might be worthwhile to pull it off and take a peek.

  5. #5
    New Member
    Join Date
    Feb 2013
    Posts
    4
    Location
    Canton Georgia
    Tractor
    Kabota L3800

    Default Re: grinding starter

    Quote Originally Posted by super55 View Post
    If your dealer said that I might consider looking at a new svc dealer or at least get a second opinion. Grinding starters usually mean 1. Worn gears on starter, 2. Worn gears on flywheel or 3. There might be some clearance issues with the starter and the flywheel usually involving adding or removing some shims.

    If they just replaced the starter and it is still doing it Im guessing you either have worn/missing teeth on the flywheel or the starter isn't engaging deep enough on the flywheel and is slipping/grinding because of some possible shims left from the previous starter.

    I don't know if Kubotas have inspection plates for the flywheel but if they do it might be worthwhile to pull it off and take a peek.
    Alright, I will do that ASAP and I will be sure to let you know what I find. I will be sorely disappointed in my dealer if it is such an obvious issue!

  6. #6
    Veteran Member
    Join Date
    Sep 2004
    Posts
    2,409
    Location
    Kansas, Butler county, Just east of DooDah
    Tractor
    Kubota L4200 GSTCA

    Default Re: grinding starter

    Pull the starter, very easy to do... You can See the flywheel gear with the starter removed.

  7. #7
    New Member
    Join Date
    Feb 2013
    Posts
    4
    Location
    Canton Georgia
    Tractor
    Kabota L3800

    Default Re: grinding starter

    Thanks KennyV !!!

  8. #8
    Platinum Member
    Join Date
    Oct 2011
    Posts
    553
    Location
    North East PA
    Tractor
    Kubota BX2230 & B2320

    Default Re: grinding starter

    Engines stop at approximately the same position so if you have a broken/chipped tooth on the flywheel you will keep hitting it. Best to check the flywheel by removing the starter and inspecting the ring gear for damage. I would not accept " run it till it breaks " from the dealer. It will break at the most inopportune time guaranteed.

  9. #9
    Veteran Member
    Join Date
    Jul 2009
    Posts
    1,743
    Location
    IL
    Tractor
    B2710

    Default Re: grinding starter

    Quote Originally Posted by timster2 View Post
    Engines stop at approximately the same position ...
    Why? The pistons compression strokes are staggered, and there's a lot of spinning mass that has to come to rest.
    Kubota B2710, New Holland CM274 front mower, Toro Zmaster ZTR, Ford 908 bush hog, New Idea manure spreader, Swisher trail mower

  10. #10
    Platinum Member
    Join Date
    Oct 2011
    Posts
    553
    Location
    North East PA
    Tractor
    Kubota BX2230 & B2320

    Default Re: grinding starter

    Quote Originally Posted by BeezFun View Post
    Why? The pistons compression strokes are staggered, and there's a lot of spinning mass that has to come to rest.
    It may be old school, however, still applies. The engine stops at the compression stroke or nearby thereby limiting the area that it stops. In an inline six cylinder engine the engine stops in one of three areas wearing out the ring gear due to the starter engaging and wearing the teeth. Depending on the number of cylinders and their configuration the engine will stop in about the same area if there is a chipped or damaged tooth on the ring gear you will hit the damaged area often. When rebuilding old inline six engines and replacing the flywheels it was common practice to rotate the ring gear sixty degrees to move the engagement area. If the ring gear was worn on one side it was flipped over and the process started over again. In this day of just replacing parts this is one of those things that is rarely done anymore, I'm showing my age

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